CN103728541A - Standardized test device for cross arm shields - Google Patents
Standardized test device for cross arm shields Download PDFInfo
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- CN103728541A CN103728541A CN201410000521.7A CN201410000521A CN103728541A CN 103728541 A CN103728541 A CN 103728541A CN 201410000521 A CN201410000521 A CN 201410000521A CN 103728541 A CN103728541 A CN 103728541A
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- external electrode
- cross arm
- detection platform
- electrode
- shielding cover
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 63
- 239000004020 conductor Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention discloses a standardized test device for cross arm shields. The standardized test device for the cross arm shields is characterized in that the standardized test device for the cross arm shields comprises detection platforms [1], detection platform high-voltage leads [2], a high-voltage conducting rod [3], insulation supporting rods [4], a base [5] and a leakage ampere meter [6], wherein the base [5] is made of an insulation material. In the detection process, each cross arm shield is placed between an outer electrode [11] and an inner electrode [12] of the corresponding detection platform [1], test high voltage is exerted on the high-voltage conducting rod [3], and the leakage current value of each cross arm shield on the corresponding detection platform [1] under the test high voltage is read through the leakage ampere meter [6]. In order to improve the convenience of detection, the base [5] of one device can be provided with multiple detection platforms [1], the outer electrode [11] and the inner electrode [12] on each detection platform [1] can be of various types, so that multiple cross arm shields of the same type or different types at the same voltage class are detected at a time conveniently, and the flexibility and rapidity of detection of the cross arm shields are improved.
Description
Technical field
The present invention relates generally to band electro-detection cross arm shielding cover, refers in particular to cross arm shielding cover standardization test unit, can carry out the test unit that the cross arm shielding covers that overlap the different regulations of identical electric pressure are tested more simultaneously.
Background technology
Live working of distribution network is used widely in power grid enterprises and other power supply units, and distribution network live line work can reduce the loss of supply causing due to interruption maintenance, can greatly improve power supply reliability.And live working tools is the important substance basis that ensures the distribution network live line work person and device security.In order to guarantee the safe reliability of live working tools, industry standard regulation distribution protection class live working tools carries out preventive trial every year 2 times, is spaced apart during this time half a year.
The main detection of live working tools is that insulating property detect, and insulating property detect the industrial frequency withstand voltage detection at the insulation position that is mainly Work tool, the detection of Work tool at present causes Work tool detection lack of standardization owing to mostly detecting the lack of standardization of unit detecting electrode, cause Work tool to have certain potential safety hazard, detection efficiency is low simultaneously.That detects lack of standardizationly mainly refers to, the insulation position of Work tool can not effectively be detected.For this reason, the detection technique of Work tool will embody in power frequency withstand test process, and effective insulation position of Work tool is really detected.According to < < electric-power safe instruments preventive trial rules > >, when carrying out mask Insulation Test, conventionally the electrode of the inside of mask is a metal mandrel, and be placed in center in mask, mask outer electrode is ground-electrode, by conductive material, as metal forming etc., because power distribution network Work tool is complex-shaped, different, the real good contact test specimen insulation of detecting electrode position is not easy, and this is also to detect nonstandard major reason in the past.In addition, when insulation detects, a common withstand voltage test can only be tested one, and detection efficiency is low, causes general unit to be difficult to carry out such equipment test.
Summary of the invention
In order to solve lack of standard and the low shortcoming of detection efficiency of cross arm shielding cover test, the present invention is intended to design a kind of cross arm shielding cover standard test unit, with the detection of standard cross arm shielding cover, improve the efficiency that cross arm shielding cover detects, reduce staff's labour intensity.
The technical solution used in the present invention is:
Carrying out the cross arm shielding cover test of multiple same electric pressures, according to the pattern of cross arm shielding cover, choose external electrode and the interior electrode of different patterns, cross arm shielding cover is put between external electrode and interior electrode, again external electrode, interior electrode are put in detection platform together with cross arm shielding cover, then detection platform is put on base.Then external electrode is connected with external electrode bracket by connecting wire, external electrode bracket is connected with the high-pressure side of leakage current table, and interior electrode is connected with high-voltage conductive rod by detection platform high-voltage connection.Repeat above-mentioned steps and place one or more detection platform, then on high-voltage conductive rod, apply the trial voltage corresponding with cross arm shielding cover electric pressure, read leakage current values corresponding to each detection platform, complete the test of a collection of cross arm shielding cover.
Described cross arm shielding cover standardization test unit, its base is equipped with multiple leakage current tables, and the low-pressure side of reometer and shell all link together, and on base, can place multiple detection platform simultaneously.
Described external electrode and interior electrode, its shape is identical with cross arm shielding cover profile.For can one-time detection the cross arm shielding cover of different patterns, can have the external electrode of various shape and interior electrode with standby.
Described external electrode and interior electrode, the low 2cm of its aspect ratio cross arm shielding cover or lower, to reach the not internal electrode discharge of external electrode at the trial.
Described detection platform, comprise external electrode bracket and detection platform support bar, support bar adopts insulating material to make, external electrode bracket does not adopt and is fixedly connected with external electrode, so that change the external electrode of different patterns, but in order to guarantee the reliability of its connection, external electrode bracket can adopt plain conductor to be connected with external electrode.
Adopt the present invention to there is following advantage:
1, on base, be fixed with multiple leakage current tables and can place multiple detection platform and can guarantee once can detect multiple cross arm shielding covers.
2, external electrode is identical with cross arm shielding cover profile with interior electrode shape, can guarantee that external electrode reliably contacts with interior electrode; External electrode and interior electrode adopt variation can be used for detecting the cross arm shielding cover of different patterns.
3, external electrode bracket does not adopt to be fixedly connected with to have facilitated from external electrode and changes external electrode to detect the cross arm shielding cover of different patterns, adopts plain conductor to connect and has improved the reliability that external electrode bracket is connected with external electrode.
In sum: cross arm shielding cover standardization test unit can the multiple same pattern of one-time detection or the cross arm shielding cover of different patterns, have improved the efficiency that cross arm shielding cover detects, and have reduced testing staff's labour intensity.
Accompanying drawing explanation
Fig. 1 cross arm shielding cover standardization test unit overall schematic;
Fig. 2 cross arm shielding cover standardization test unit detection platform;
A kind of special style cross arm shielding cover of Fig. 3 external electrode stereographic map;
Electrode stereographic map in a kind of special style cross arm shielding cover of Fig. 4;
Fig. 5 detection platform support bar and external electrode bracket stereographic map.
Embodiment
As shown in Figure 1, cross arm shielding cover standardization test unit, comprises detection platform [1], detection platform high-voltage connection [2], high-voltage conductive rod [3], insulating support rod [4], base [5], leakage current table [6], universal wheel [7] composition, wherein in base, [5] adopt stainless steel or other conductive materials to make.
As shown in Figure 2, in order to facilitate cross arm shielding cover test, detection platform [1] is by external electrode [11], interior electrode [12], external electrode bracket [14], detection platform support bar [15] composition, cross arm shielding cover [13] is placed between external electrode [11] and interior electrode [12], wherein external electrode [11], interior electrode [12] and external electrode bracket [14] are made by stainless steel or other conductive materials, and detection platform support bar [15] is made by insulating material.In order to guarantee reliable connection the between external electrode [11] and external electrode bracket [12], the connection between external electrode [11] and external electrode bracket [12] adopts the wire [16] that removably connects reliably to connect.
Principle of work of the present invention is: in detection platform [1] is upper, electrode [12] is connected with high-voltage conductive rod [3] by detection platform high-voltage connection [2], external electrode [11] is placed on external electrode bracket [14], external electrode bracket [14] is connected with leakage current table [6] high-pressure side, when detecting, cross arm shielding cover is put between the external electrode [11] and interior electrode [12] of detection platform [1], on high-voltage conductive rod [3], apply test high pressure, by leakage current table [6], read the leakage current values of the upper cross arm shielding cover of corresponding detection platform [1] under test high pressure.Simultaneously for the validity that guarantees to detect and the efficiency that improves detection, the external electrode [11] of detection platform [1] and the profile of interior electrode [12] profile and cross arm shielding cover are consistent, in order to detect the cross arm shielding cover that profile is different, external electrode [11] and interior electrode [12] can have the much right of different profiles simultaneously; In order to guarantee that external electrode [11] reliably contacts with cross arm shielding cover with interior electrode [12], on interior electrode [12], can place certain counterweight to guarantee its contact reliably simultaneously.The base [5] of one table apparatus can be equipped with many detection platform [1], and external electrode [11] and interior electrode [12] in detection platform [1] can have multiple pattern, so that the cross arm shielding cover of identical or different pattern under the multiple same electric pressures of one-time detection.
Claims (6)
1. cross arm shielding cover standardization test unit, is characterized in that: this kind of cross-arm covers standardization test unit and comprise detection platform [1], detection platform high-voltage connection [2], high-voltage conductive rod [3], insulating support rod [4], base [5], leakage current table [6], universal wheel [7] composition; Wherein in base, [5] adopt stainless steel or other conductive materials to make, and base [5] keeps in test ground connection.
2. cross arm shielding cover according to claim 1 standardization test unit, is characterized in that: detection platform [1] is by external electrode [11], interior electrode [12], external electrode bracket [14], detection platform support bar [15] composition; Wherein external electrode [11], interior electrode [12] and external electrode bracket [14] are made by stainless steel or other conductive materials; Detection platform support bar [15] is made by hollow insulating material, facilitates external electrode bracket [14] to be connected by the conductor penetrating in detection platform support bar [15] with leakage current table [6]; In order to prevent internally electrode [12] electric discharge of external electrode [11] in detection, detection platform external electrode [11] and the highly low 2cm of interior electrode [12] or lower, be as the criterion with internal electrode [12] electric discharge of external electrode under trial voltage [11].
3. cross arm shielding cover standardization test unit according to claim 1, it is characterized in that: in detection platform [1] is upper when detecting, electrode [12] is connected with high-voltage conductive rod [3] by detection platform high-voltage connection [2], external electrode [11] is placed on external electrode bracket [14], external electrode bracket [14] is connected with leakage current table [6] high-pressure side, cross arm shielding cover is put between the external electrode [11] and interior electrode [12] of detection platform [1], on high-voltage conductive rod [3], apply test high pressure, by leakage current table [6], read the leakage current values of the upper cross arm shielding cover of corresponding detection platform [1] under test high pressure.
4. cross arm shielding cover standardization test unit according to claim 1, it is characterized in that: in order to guarantee the reliable convenience that is connected and changes external electrode [11] between external electrode [11] and external electrode bracket [12], the connection between external electrode [11] and external electrode bracket [12] adopts the line [16] that removably connects reliably to connect.
5. cross arm shielding cover standardization test unit according to claim 1, it is characterized in that: the external electrode [11] of detection platform [1] and the profile of interior electrode [12] profile and cross arm shielding cover are consistent, in order to detect the cross arm shielding cover that profile is different, external electrode [11] and interior electrode [12] can have the much right of different profiles simultaneously; In order to guarantee that external electrode [11] reliably contacts with cross arm shielding cover with interior electrode [12], on interior electrode [12], can place certain counterweight to guarantee its contact reliably simultaneously.
6. according to cross arm shielding cover standardization test unit according to claim 1, it is characterized in that: the base [5] of a table apparatus can be equipped with many detection platform [1], with the external electrode [11] in detection platform in one-time detection [1] and interior electrode [12], can there is multiple pattern, so that the cross arm shielding cover of identical or different pattern under the multiple same electric pressures of one-time detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410000521.7A CN103728541A (en) | 2014-01-02 | 2014-01-02 | Standardized test device for cross arm shields |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410000521.7A CN103728541A (en) | 2014-01-02 | 2014-01-02 | Standardized test device for cross arm shields |
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| Publication Number | Publication Date |
|---|---|
| CN103728541A true CN103728541A (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410000521.7A Pending CN103728541A (en) | 2014-01-02 | 2014-01-02 | Standardized test device for cross arm shields |
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| CN (1) | CN103728541A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169641A (en) * | 2018-01-08 | 2018-06-15 | 国家电网公司 | A kind of insulated shielding cover experimental rig |
| CN108226719A (en) * | 2017-12-18 | 2018-06-29 | 国网北京市电力公司 | Cross arm shielding cover experimental rig |
-
2014
- 2014-01-02 CN CN201410000521.7A patent/CN103728541A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226719A (en) * | 2017-12-18 | 2018-06-29 | 国网北京市电力公司 | Cross arm shielding cover experimental rig |
| CN108169641A (en) * | 2018-01-08 | 2018-06-15 | 国家电网公司 | A kind of insulated shielding cover experimental rig |
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Application publication date: 20140416 |